The D.E.N. Skin Guide
Natural skincare, explained by a doctor.
Honest answers about what natural skincare can and cannot do, how to read the labels, and how to build a simple routine that respects the skin barrier.
“Natural” has no legal definition in cosmetics. Natural doesn't automatically mean gentle, and synthetic doesn't automatically mean harmful.
That is why we wrote these guides: to help you choose skincare by what it does for your skin, not by what the label promises.
Understand the labels
What the claims and certifications really tell you.
Understand ingredients
Choose by function, not hype.
IngredientsYour skin doesn't need more. It needs the right ingredients.
How to choose skincare by what it does, not by what's trending.
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IngredientsCeramides: why your skin barrier needs them
The lipids your skin already knows, and when to prioritise them.
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IngredientsRetinol vs bakuchiol vs Bidens pilosa
Three approaches to skin renewal, and how to choose.
Read →Support the skin barrier
The foundation of healthy, comfortable skin.
Sensitive & recovering skin
Calm, not more stimulation.
Written by a doctor
“Skin is physiology, not marketing.”
Every guide here is written by Dr Mica Engel, an aesthetic doctor at Cosmetica London in Balham since 2012 and the founder of D.E.N.
The approach is the same one she uses in clinic: start with the biology, protect the barrier, and choose the lowest effective intervention.
Dr Mica Engel
Build your routine
Sometimes, skin needs less.
Find a simple, barrier-first routine matched to your skin in two minutes.
Shop natural skincare by step